---
id: CVE-2020-24511
title: >-
  Improper isolation of shared resources in some Intel(R) Processors may allow
  an authenticated user to potentially enable information disclosure via local
  access.
summary: >-
  Improper isolation of shared resources in some Intel(R) Processors may allow
  an authenticated user to potentially enable information disclosure via local
  access.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'
cwe:
  - CWE-668
vendor: intel
product: microcode
affected:
  - microcode < 20210608
  - debian_linux = 10.0
  - fas/aff_bios
  - hci_compute_node_bios
  - solidfire_bios
patched:
  - microcode 20210608
published: '2021-06-09'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T21:17:25.567'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-24511'
references:
  - url: 'https://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdf'
    label: secure@intel.com
  - url: 'https://lists.debian.org/debian-lts-announce/2021/07/msg00022.html'
    label: secure@intel.com
  - url: 'https://security.netapp.com/advisory/ntap-20210611-0005/'
    label: secure@intel.com
  - url: 'https://www.debian.org/security/2021/dsa-4934'
    label: secure@intel.com
  - url: >-
      https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00464.html
    label: secure@intel.com
  - url: 'https://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdf'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2021/07/msg00022.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20210611-0005/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.debian.org/security/2021/dsa-4934'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00464.html
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00399
epssPercentile: 0.32007
ingestedAt: '2026-10-08T22:11:53.734Z'
---

## Overview

Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

## Affected

- `microcode < 20210608`
- `debian_linux = 10.0`
- `fas/aff_bios`
- `hci_compute_node_bios`
- `solidfire_bios`

## Remediation

Upgrade past the affected range:

- `microcode 20210608`